用子波变换方法实现高距离分辨雷达中精确距离跟踪

本文研究了在高距离分辨雷达(HRR)中对输入的回波信号进行子波变换实现精确距离跟踪.HRR雷达所得的目标回波波形是目标各强散射点在雷达视线上的投影 .对一个具体的波形散射点至雷达之间的距离从原理上都可以得出,但从实际上,由于目标运动时姿态变化,其散射点幅度和距离变化太快,因此实现对散射点距离跟踪是很困难的.本文在国内首次介绍利用对信号的子波变换方法提取目标的综合信息实现对雷达目标的精确距离跟踪.实际证明此方法是可行的.

Using Wavelet Transform for Ranging Tracking Systemin High Resolution Radar Systems

The method of ranging tracking using wavelet transform in high resolution radar system is researched in this paper.The back scattered power of the target is represented as a function of time.The range of the each scattered point could be measured as a delay time of transmitter pulse.But for moving targets the amplitude and range would change speedily.So it is very difficult to tracking the range.In this paper the method of wavelet transform of input pulse for range tracking system is satisfactorily demonstrated.